Clamp for umbrella tents



March 17, 1925 1,530,257

L. B. GOLDBERG ET AL CLAMP FOR UMBRELLA TENTS Filed Jan. 11, 1924 11W 33 9 MM IH M In w low: 13. Goldbezy Ndibai; Guidery. William Goidery. 1 Jacob f1, Goider attor we. a;

Patented Mar. 17, 1925.

UNITED STATES PATENTOFFVIVCEL LoUIs B. GOLDBERG, NATHAN GOLDBERG, WILLIAM GOLDBERG, AND JACOB M. GOLD BERG, or DENVER, COLORADO.

LAMB Eon UMBRELLA TENTS.

Application filed January 11. 1924. Serial No. 685,513.

To all whom it may concern: I

Be it known that we, LOUIS B. GOLDBERG, NATHAN GOLDBERG, WILLIAM GOLDBERG, and JAOOB M. GOLDBERG, citizens of the United States, residing at the city and county of Denver, and State of Colorado, have invented certain new and useful Improvements in Clamps for Umbrella Tents; and we do declare the following to be a full, clear, and'exact description of th'e'invention, such as will enable others skilled in the art to,

which it appertains to make and use the same, reference being had to the accompanying drawings, and to the characters of reference marked thereon, which form a part of this specification.

This invention relates to improvementsin the construction of tents of the type known as umbrella tents, and has special reference to improvements in clamps to be employed in connection with such a tent.

Tents of the type referred to are extensively employed by automobilists, as they require only a single pole and can be compactly folded. The corners of the tent are held up by braces which are pivotally connected to a sliding clamp that surrounds the pole and which is so constructed that it can be clamped onto the pole at any place desired.

It is the object of this invention to produce a clamp that shall be of exceedingly simple construction, which shall be substantial and of neat appearance.

Our invention can be best described and will be most readily understood when reference is had to the accompanying drawing in which the preferred embodiment thereof is shown, and in which:

Fig. 1 is a perspective view of an umbrella tent with parts broken away to better show the construction;

Fig. 2 is a side elevation of a portion of the center pole with our improved clamp in place thereon;

Fig. 3 is an end view of the clamp alone taken on line 3-3, Fig. 2;

Fig. 4 is a section of the clamp taken on line 44, Fig. 2;

Fig. 5 shows a modified form of clamping means;

Figs. 6 and 7 show a second modification of the clamping means; and l Figs. 8 and 9 show a third modification.

The same reference numerals will be used to designate-the same parts throughout the several views. I

Numeral 1 designates the center pole of an umbrella tent and 2 the clamp which is slidably connected therewith. From this clamp braces 3 extend upwardly to the corners of the tent. The clamp consists of a cylindrical body member 4, one end of which is split longitudinally so as to provide fingers 5 whose lower ends are outwardly flared as indicated by numeral 6.

The upper end of the body portion 4 has its edge beaded as indicated by numeral '7 (Figs. 5 and 8). Secured to the outside of the body member 4 and held in place by spot welding are four similar arcuate members 8, each having their ends 9 bent outwardly in a radial direction, referring to the arcuate central portion. Members 8 are so proportioned that when they are spaced'unlformly about the member 4, the ends 9 will be spaced a short distance apart for the reception of the ends of the braces 3, which are pivotally attached thereto by means of bolts or rivets which pass through the holes 10. Surrounding the body member 4 near the ends of the fingers 5 is a strap 11 whose ends 12 and 13 extend outwardly and are perforated for the reception of a bolt 14 having a nut 15. The head 16 of the bolt has its inner side inclined at an angle to the axis of the bolt and the end 13 has a corresponding inclination. A washer 17 is positioned between the head and the end 13 in the manner shown in Figs. 3 and 4. \Vhen the parts are in the position shown 'in Fig. 4, the clamp is loose on the pole and when they are in the position shown in Fig. 3, the clamp is clamped onto the pole so that it will not slide thereon. Thus by rotating the bolt 14, halfa turn the clamp can be loosened or fastened.

In Fig. 5 we have shown a modification in which the bolt 1 11 instead of having a head 16, is forked and has a cam member 18 pivoted between the two parts 19. The cam 18 has a handle 20 by means of which it may be rotated about its pivot for the purpose of tightening or loosening the clamp.

In Figs. 6 and 7 we have shown an embodiment which is substantially the same as that shown in Fig. 5, but the handle 21 which corresponds to the handle 20 in 5, is slightly curved and is intended to move in a plane perpendicular to the axis of the pole.

In Figs. 8 and 9 we have shown the lower end of the clamp surrounded by an endless strap 22, one portion of which is offset in the manner shown in Fig. 9 so as to receive a nut 23 which cooperates wit-h the clamping screw 2&. This screw cooperates with one of the fingers 5, which is forced thereby against the side of the center post so as to clamp the parts against longitudinal movement thereon.

The clamp described above is of simple and substantial construction and is so designed that it can be readily operated. T he nut 15 serves ,as the adjusting means foreb- Having now described our invention,'

what we claim as new is:

A clamp for umbrella tents comprising, in combination, a member of cylindrical shape "having one end split longi tudinally to form a plurality of fingers that are relati vely movable, a plurality of spaced mems ecur d o the r y intl -icalyme er 1133.3 the end opposite from the fingers, said spaced members having a central arcuate portion adapted to be secured to the cylindrical member, the ends of said spaced members being bent radially and spaced :1 short distance from the corresponding ends of the adjacent members, each of said ends being perforated, and a clamp adapted to be secured to the fingers tor moving the same.

In testimony whereof we afiig; our signatures.

LOUIS B. GOLDBERG. NATHAN GOLD-BERG, WVILLIAM "GOLDBERG. v JACOB'M. GOLDBERG. 

